optimized mysql config for virtual servers

Author: serghey-rodin

install/0.9.7/rhel/mysql-512.cnf

@@ -0,0 +1,32 @@
+[mysqld]
+datadir=/var/lib/mysql
+socket=/var/lib/mysql/mysql.sock
+user=mysql
+symbolic-links=0
+max_connections=70
+max_user_connections=30
+wait_timeout=10
+interactive_timeout=50
+long_query_time=5
+#log-queries-not-using-indexes
+#log-slow-queries=/var/log/mysql/log-slow-queries.log
+
+key_buffer = 16M
+myisam_sort_buffer_size = 32M
+join_buffer_size=1M
+read_buffer_size=1M
+sort_buffer_size=2M
+table_cache=1024
+thread_cache_size=286
+interactive_timeout=25
+connect_timeout=5
+max_allowed_packet=1M
+max_connect_errors=1000
+query_cache_limit=1M
+query_cache_size=8M
+query_cache_type=1
+tmp_table_size=16M
+
+[mysqld_safe]
+log-error=/var/log/mysqld.log
+pid-file=/var/run/mysqld/mysqld.pid

install/vst-install.sh

@@ -436,7 +436,12 @@ if [ -e '/root/.my.cnf' ]; then
     mv /root/.my.cnf $vst_backups/mysql/
 fi
 mpass=$(gen_pass)
-wget $CHOST/$VERSION/mysql.cnf -O /etc/my.cnf
+server_memory="$(grep 'MemTotal' /proc/meminfo |tr ' ' '\n' |grep [0-9])"
+if [ "$server_memory" -gt '1000000' ]; then
+    wget $CHOST/$VERSION/mysql.cnf -O /etc/my.cnf
+else
+    wget $CHOST/$VERSION/mysql-512.cnf -O /etc/my.cnf
+fi
 service mysqld start
 mysqladmin -u root password $mpass
 echo -e "[client]\npassword='$mpass'\n" >/root/.my.cnf